ACK: [PATCH 0/1][jammy/kinetic linux] Resolve synchronous exception on arm64

[Philip Cox]

On Thu, Jun 8, 2023 at 12:38 PM Tim Gardner <tim.gardner at canonical.com>
wrote:

> BugLink: https://bugs.launchpad.net/bugs/2023311
>
> SRU Justification
>
> [Impact]
>
> MSFT has requested the inclusion of commit
> e8dfdf3162eb549d064b8c10b1564f7e8ee82591 ('arm64:
> efi: Recover from synchronous exceptions occurring in firmware'). It looks
> generic enough to
> apply to the master kernels.
>
> Unlike x86, which has machinery to deal with page faults that occur during
> the execution of
> EFI runtime services, arm64 has nothing like that, and a synchronous
> exception raised by
> firmware code brings down the whole system.
>
> [Test Plan]
>
> This looks like a hard one to reproduce. Boot and regression testing
> should be sufficient.
>
> [Regression Potential]
>
> Firmware exceptions could still take down the system.
>
> [Other Info]
>
> SF: #00362062
>
>



-- 

Acked-by: Philip Cox <philip.cox at canonical.com>




>
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